Gullette, G. A., & McCrimmon, J. M. (1941). Writing effectively: An introduction to the elements of grammar, composition, and usage, with graded exercises. Farrar & Rinehart, Inc.
Lua i Stíl Chicago (17ú heag.)Gullette, George A., agus James McNab McCrimmon. Writing Effectively: An Introduction to the Elements of Grammar, Composition, and Usage, with Graded Exercises. New York: Farrar & Rinehart, Inc, 1941.
Lua MLA (8ú heag.)Gullette, George A., agus James McNab McCrimmon. Writing Effectively: An Introduction to the Elements of Grammar, Composition, and Usage, with Graded Exercises. Farrar & Rinehart, Inc, 1941.
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